VADDPS (ZMM, ZMM, ZMM) - Throughput and Uops (IACA 3.0)

With different registers for different operands

With 1 independent instruction

Throughput Analysis Report
--------------------------
Block Throughput: 0.50 Cycles       Throughput Bottleneck: Dependency chains
Loop Count:  59
Port Binding In Cycles Per Iteration:
--------------------------------------------------------------------------------------------------
|  Port  |   0   -  DV   |   1   |   2   -  D    |   3   -  D    |   4   |   5   |   6   |   7   |
--------------------------------------------------------------------------------------------------
| Cycles |  0.5     0.0  |  0.0  |  0.0     0.0  |  0.0     0.0  |  0.0  |  0.5  |  0.0  |  0.0  |
--------------------------------------------------------------------------------------------------

| Num Of   |                    Ports pressure in cycles                         |      |
|  Uops    |  0  - DV    |  1   |  2  -  D    |  3  -  D    |  4   |  5   |  6   |  7   |
-----------------------------------------------------------------------------------------
|   1      | 0.5         |      |             |             |      | 0.5  |      |      | vaddps zmm0, zmm1, zmm2
Total Num Of Uops: 1

With 16 independent instructions

Throughput Analysis Report
--------------------------
Block Throughput: 8.00 Cycles       Throughput Bottleneck: Backend
Loop Count:  22
Port Binding In Cycles Per Iteration:
--------------------------------------------------------------------------------------------------
|  Port  |   0   -  DV   |   1   |   2   -  D    |   3   -  D    |   4   |   5   |   6   |   7   |
--------------------------------------------------------------------------------------------------
| Cycles |  8.0     0.0  |  0.0  |  0.0     0.0  |  0.0     0.0  |  0.0  |  8.0  |  0.0  |  0.0  |
--------------------------------------------------------------------------------------------------

| Num Of   |                    Ports pressure in cycles                         |      |
|  Uops    |  0  - DV    |  1   |  2  -  D    |  3  -  D    |  4   |  5   |  6   |  7   |
-----------------------------------------------------------------------------------------
|   1      | 1.0         |      |             |             |      |      |      |      | vaddps zmm0, zmm1, zmm2
|   1      |             |      |             |             |      | 1.0  |      |      | vaddps zmm3, zmm1, zmm2
|   1      | 1.0         |      |             |             |      |      |      |      | vaddps zmm4, zmm1, zmm2
|   1      |             |      |             |             |      | 1.0  |      |      | vaddps zmm5, zmm1, zmm2
|   1      | 1.0         |      |             |             |      |      |      |      | vaddps zmm6, zmm1, zmm2
|   1      |             |      |             |             |      | 1.0  |      |      | vaddps zmm7, zmm1, zmm2
|   1      | 1.0         |      |             |             |      |      |      |      | vaddps zmm8, zmm1, zmm2
|   1      |             |      |             |             |      | 1.0  |      |      | vaddps zmm9, zmm1, zmm2
|   1      | 1.0         |      |             |             |      |      |      |      | vaddps zmm10, zmm1, zmm2
|   1      |             |      |             |             |      | 1.0  |      |      | vaddps zmm11, zmm1, zmm2
|   1      | 1.0         |      |             |             |      |      |      |      | vaddps zmm12, zmm1, zmm2
|   1      |             |      |             |             |      | 1.0  |      |      | vaddps zmm16, zmm1, zmm2
|   1      | 1.0         |      |             |             |      |      |      |      | vaddps zmm17, zmm1, zmm2
|   1      |             |      |             |             |      | 1.0  |      |      | vaddps zmm18, zmm1, zmm2
|   1      | 1.0         |      |             |             |      |      |      |      | vaddps zmm19, zmm1, zmm2
|   1      |             |      |             |             |      | 1.0  |      |      | vaddps zmm20, zmm1, zmm2
Total Num Of Uops: 16

With the same register for for different operands

Throughput Analysis Report
--------------------------
Block Throughput: 3.96 Cycles       Throughput Bottleneck: Backend
Loop Count:  92
Port Binding In Cycles Per Iteration:
--------------------------------------------------------------------------------------------------
|  Port  |   0   -  DV   |   1   |   2   -  D    |   3   -  D    |   4   |   5   |   6   |   7   |
--------------------------------------------------------------------------------------------------
| Cycles |  0.5     0.0  |  0.0  |  0.0     0.0  |  0.0     0.0  |  0.0  |  0.5  |  0.0  |  0.0  |
--------------------------------------------------------------------------------------------------

| Num Of   |                    Ports pressure in cycles                         |      |
|  Uops    |  0  - DV    |  1   |  2  -  D    |  3  -  D    |  4   |  5   |  6   |  7   |
-----------------------------------------------------------------------------------------
|   1      | 0.5         |      |             |             |      | 0.5  |      |      | vaddps zmm0, zmm0, zmm0
Total Num Of Uops: 1